Instantly encode text to Base64 or decode Base64 to text - 100% free, no signup
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Our Base64 Encoder & Decoder is a free online tool that allows you to encode and decode Base64 data instantly. Whether you are a developer, student, or IT professional, this tool helps you convert text or files into Base64 format and decode Base64 strings back to their original form with ease. No registration, no downloads, and no setup required.
Base64 encoding is commonly used to safely transmit binary data over text-based systems such as email, APIs, JSON, XML, and web applications. With this online Base64 encoder and decoder, you can perform conversions quickly while keeping your data private and secure.
Base64 encoding is a method of converting binary data into a readable text format using a set of 64 characters (A–Z, a–z, 0–9, +, /). This allows binary data such as images or files to be stored or transferred in systems that only support plain text.
Base64 is not encryption. It does not hide or secure data, but simply represents it in a different format. Base64 encoding is widely used in web development, authentication headers, APIs, and file embedding.
This online Base64 encoder and decoder makes these tasks easy without requiring command-line tools or programming libraries.
All processing happens instantly, ensuring fast performance and user privacy.
This Base64 Encoder & Decoder online tool is useful for:
Base64 encoding itself is safe to use, but it should not be considered a security measure. Since Base64 data can be easily decoded, sensitive information should be encrypted before encoding if security is required.
This tool does not store or log any user data, making it safe for everyday encoding and decoding tasks.
Encode text to Base64 and decode Base64 back to text seamlessly
Generate URL-safe Base64 strings for web applications and APIs
Upload and process text files directly without size limitations
Process multiple lines or entries simultaneously
All processing happens locally in your browser - no server uploads
No registration, no limits, completely free to use
Choose between "Encode to Base64" to convert text to Base64 format, or "Decode from Base64" to convert Base64 back to readable text.
Type or paste your text in the input area. You can also upload files using the upload button for batch processing.
Toggle URL-safe encoding for web use, set line wrapping preferences, or enable batch processing for multiple entries.
Click "Convert Now" to see the result. Copy the output or use it directly in your applications.
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Base64 encoding is commonly used for:
No, Base64 is encoding, not encryption. It doesn't provide security but ensures data can be transmitted through text-only systems. Anyone can decode Base64 back to the original data.
URL-safe Base64 replaces the + and / characters with - and _ respectively, and removes padding (=). This makes the encoded string safe to use in URLs without additional percent-encoding.
Example: Regular: SGVsbG8rV29ybGQ= → URL-safe: SGVsbG8rV29ybGQ
This tool supports text files (.txt, .json, .xml, .html, .css, .js). For binary files (images, PDFs, etc.), you would need to upload them as text files containing the Base64 string, or use a specialized binary-to-text tool.
Base64 encodes 3 bytes of binary data into 4 ASCII characters, resulting in approximately 33% size increase. This overhead is necessary to represent binary data using only 64 printable ASCII characters.
Yes, absolutely! All processing happens locally in your browser. We don't send your data to any server, store it, or log it. Your privacy is guaranteed.